Hg1Ru1Y2
Hg1Ru1Y2 is a semiconducting intermetallic compound containing mercury, ruthenium, and yttrium that is primarily studied for its structural properties.
About Hg1Ru1Y2
Hg1Ru1Y2 is a complex intermetallic compound composed of mercury, ruthenium, and yttrium. As a member of the platinum-group alloy catalyst family, it exhibits semiconducting electronic behavior, marking a departure from the typical metallic nature of many related alloys. Although it is currently identified as being above the thermodynamic hull, it remains a subject of interest due to its structural diversity.
The material represents a niche area of research within catalyst development. Its specific composition and electronic state suggest potential for specialized applications where precise control over charge carrier behavior is required, despite its status as a metastable phase.
Key Properties
Cross-validated computational properties for Hg1Ru1Y2, aggregated across 2 databases.
Band GapEnergy needed to move an electron from the valence band to the conduction band. Lower or zero values tend to behave more metallic; larger gaps are more insulating or semiconducting.
Energy Above HullThermodynamic distance from the most stable set of competing phases. 0 eV/atom is on the convex hull; small positive values may still be experimentally accessible.
StabilityA plain-language summary of the best reported energy-above-hull result. It reflects whether the lowest-energy structure is on, near, or far from the stability hull.
StructuresCount of reported calculated crystal structures for this formula, including alternate polymorphs, source databases, and observed space groups.
Reported Structures
Lowest-energy structures reported for Hg1Ru1Y2, ranked by energy above hull.
| Space GroupSymmetry classification of the crystal arrangement. The number is the international space-group index. | Crystal SystemBroad lattice family, such as cubic, tetragonal, monoclinic, or triclinic, derived from unit-cell symmetry. | Band Gap (eV)Electronic gap calculated for this specific reported structure, measured in electronvolts. | E above hull (eV/atom)Thermodynamic distance from the convex hull for this structure, normalized per atom. Lower is generally more stable. | E/atom (eV)Computed total energy normalized per atom. Use energy above hull, not this value alone, when comparing stability. | Density (g/cm³)Mass per relaxed crystal volume, reported in grams per cubic centimeter. |
|---|---|---|---|---|---|
| Immm (No. 71) | orthorhombic | 0.19 | 2.3165 | -3.731 | 0.67 |
| P2/m (No. 10) | — | — | — | — | — |
| F-43m (No. 216) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
| Cm (No. 8) | — | — | — | — | — |
| Immm (No. 71) | — | — | — | — | — |
| Fm-3m (No. 225) | — | — | — | — | — |
| I-4m2 (No. 119) | — | — | — | — | — |
| P4mm (No. 99) | — | — | — | — | — |
| R-3m (No. 166) | — | — | — | — | — |
| Imm2 (No. 44) | — | — | — | — | — |
| C2/m (No. 12) | — | — | — | — | — |
Applications
Where Hg1Ru1Y2 is used.
Frequently Asked Questions
Common questions about Hg1Ru1Y2, answered from cross-validated data.
What is Hg1Ru1Y2?
Hg1Ru1Y2 is a semiconducting intermetallic compound containing mercury, ruthenium, and yttrium that is primarily studied for its structural properties.
What is Hg1Ru1Y2 used for?
What is the band gap of Hg1Ru1Y2?
Is Hg1Ru1Y2 a metal, semiconductor, or insulator?
Is Hg1Ru1Y2 thermodynamically stable?
What is the crystal structure of Hg1Ru1Y2?
What is the density of Hg1Ru1Y2?
How many polymorphs of Hg1Ru1Y2 are known?
What elements does Hg1Ru1Y2 contain?
Where does the data for Hg1Ru1Y2 come from?
How It Compares
Within the platinum-group alloy catalysts class.
Unlike more stable and widely characterized members of the platinum-group alloy class such as Ga2Ru or GeRu, Hg1Ru1Y2 is characterized by its metastable nature. While many of its siblings are recognized for their robust catalytic performance in industrial settings, this compound is primarily studied for its structural complexity and the unusual electronic properties emerging from the combination of mercury and ruthenium.
Related Compounds
Other Platinum-Group Alloy Catalysts in the database.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- aflow — Data from AFLOW. Cite: Curtarolo et al., Comp. Mater. Sci. 58, 218 (2012).
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